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AC LEAKAGE/LOAD CLAMP TESTER

CLAMP METERS

M-140

FEATURES

  • Wide range of current measurements (AC 0.01A〜300A).

M-310

FEATURES

  • The unique “U” type direct touch CT enables to measure the current of single & three phase circuit just by touching the conductors and
    it is suitable for the AC current measurement of narrow & congested circuit.

M-110

FEATURES

  • Model 110 is a clamp-on type ammeter which is least affected by external magnetic fields.
  • 30㎜ φ CT enables the leakage current measurement for SV cable (38㎡).
  • data hold function especially useful when working in dark or hard to get areas.
  • Pocket sized and light weight.

M-340

FEATURES

  • Model 340 is a clamp-on type ammeter which is least affected by external magnetic fields.
  • Enabled high resolution measurement with 40 ㎜φ CT by our new CT technology.
SPECIFICATIONSM140M310M110M340
Measuring function AC Leakage and Load Curent
RangeAC 0~30mA/300mA, 30A/300A, 2 range manualAC 0~30/300mA, 30/300A, 2range manual U type CT: AC 300AAC 0~2mA/20mA/60AAC 0~2mA/20mA/60A
Accuracy23℃±5℃ 80%RH or less (50/60Hz)
Range/Resolution/Accuracy
30/300mA/0.01mA/±1.2% rdg ± 5dgt
30/300A/0.01A/0~200A : ±1.2% rdg ± 5dgt
200~250A : ±3.0% rdg ± 5dgt
250~300A : ±5.0% rdg ± 5dgt
23℃±5℃ 80%RH or less (50/60Hz)
Range/Resolution/Accuracy
30/300mA/0.01mA/±1.2% rdg ± 5dgt
30/300A/0.01A/0~200A : ±1.2% rdg ± 5dgt
200~250A : ±3.0% rdg ± 5dgt
250~300A : ±5.0% rdg ± 5dgt


"U" typeCT
Cable type/Resolution/Accuracy
Single phase IV cable/0.1A/Approx. ±5%
Parallel VVF cable/0.1A/Approx. ±5%
Three phase VVR cable/0.1A/Approximate value
23℃±5℃ 80%RH or less(50/60Hz)
Range/Resolution/Accuracy
2mA/1μA/±1.0% rdg ± 5 dgt 20mA/10μA/±1.0% rdg ± 5 dgt
60A/10mA/±1.0% rdg ± 5 dgt (0~50A)
±5.0% rdg ± 5 dgt (50~60A)
23℃±5℃ 80%RH or less (50/60Hz) Range/Resolution/Accuracy
2mA/1μA/±1.0% rdg ± 5dgt
20mA/10μA/±1.0% rdg ± 5dgt 60A/100mA/±1.0% rdg ± 5dgt(0~50A)
±5.0% rdg ± 5dgt(50A~60A)
Safety standard IEC 61010-1, IEC 61010-2-032 Installation CategoryⅡ600V or CategoryⅢ300V. IEC 61010-1, IEC 61010-2-032, Installation CategoryⅡ600V or CategoryⅢ300V.
E.M.C standard EN 61326
Measuring method Dual slope integration mode
Sampling 2 times/sec (Digital display)
12 times/sec (Bar graph display)
2 times/sec
Jaw opening capability 40mmφ40mmφ
U Type: 20mmφ
30㎜φ 40㎜φ
Display3.5 digit LCD, max. reading of 32003.5 digit LCD, max. reading of 1999
Over range indication "OL" mark on LCDBlanking of all digits except MSD 1
Data hold indication"DH" mark on LCD
Low battery indication "Battery" mark on LCD
Operating temperature 0℃ to 40℃, 80%RH max. ( Without condensation )
Storage temperature -10℃ to 60℃, 70%RH max. ( Without condensation )
Auto power offApprox. 10 minutes later after power on--
Power supply 1.55V (SR-44, LR-44)×2
Battery lifeApprox. 50 hours(LR-44)Approx. 50 hours(LR-44)SR-44 (200 hours), LR-44 (100 hours)Approx. 80 hours(LR-44)
Power consumption5mW5mW3mW3.5mW
Withstanding VoltageAC 3700V 1 minute max. (Between the core of CT and outer case)AC 2200V 1 minute max. (Between the core of CT and outer case)AC 3700V 1 minute max. (Between the core of CT and outer case)
Size 64(W)×162(H)×23(D)mm 64(W)×180(H)×21(D)mm 58.5(W)×158(H)×23(D)mm 68.5(W)×175(H)×23(D)mm
Weight Approx. 125g Approx. 135gApprox. 120g Approx. 145g
Accessories Soft case:1
Instruction manual:1
Batteries LR-44(1.55V):2